Advisory Desk
AD 421:
Design
responsibility for
welds in fabricated
plate girders
In recent months the SCI has received a number of questions about
responsibility for the design of the welds between the web and flanges
of a plate girder. These longitudinal welds are an integral part of the
member design – and should therefore be sized by the engineer
responsible for the design of the beam.
Contact: Richard Henderson
Tel: 01344 636534
Email: advisory@steel-sci.com
32 NSC
September 18
AD 422:
Punching shear check
for fin plates in P358
This AD note relates to Check 10 for fin plates in P358 Simple Joints to
Eurocode 3 (the Eurocode “Green Book” on simple connections). Check 10
includes two checks for punching shear (conservative and rigorous), but
the value of γM2 is not specified in the text. Confusion is possible because
γM2 appears in both BS EN 1993-1-1 and BS EN 1993-1-8, but with different
values (1.1 and 1.25 respectively, as given in the relevant UK National
Annex).
Since the check does not concern the bolts or welds, but does concern
the ultimate material strengths of the fin plate and supporting member,
the value of γM2 should be taken as 1.1 from the UK NA to BS EN 1993-1-1.
Contact: Richard Henderson
Tel: 01344 636534
Email: advisory@steel-sci.com
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